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1 definition by CL-Dante

DSI stands for "Dick Suck Island". Basically referring to a girl taking a guy to any private place (which is considered to be the "island" to imply a sort of seclusion/privacy) to give him oral sex (blow job) without interruption.
Yeah man, we went upstairs and she took me to DSI
by CL-Dante February 15, 2011
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